As of 12:30 p.m., heavy rain had already started to fall in some parts. A flash flood warning was in effect for DuPage and Cook County, the NWS said, with reports of "totally submerged viaducts and underpasses in the city of Chicago."

The National Weather Service in Charleston met Tuesday with government officials from Berkeley, Charleston, and Dorchester counties to ensure the public knows what to expect if a flash flood warning is issued for their area.

Severe thunderstorms swept through parts of New Jersey and eastern Pennsylvania on Friday, triggering flood warnings and widespread power outages

It has been nearly three weeks since the devastating Texas floods. Meteorologist Alyssa Caroprese looked into the Emergency Alert System (EAS) and how UAlbany researchers are making it easier to